Extract from the Register of European Patents

EP About this file: EP4378902

EP4378902 - FLAKY PARTICLES AND BRILLIANT PIGMENT [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  03.05.2024
Database last updated on 21.03.2026
FormerThe international publication has been made
Status updated on  03.02.2023
Most recent event   Tooltip18.09.2025Supplementary search reportpublished on 15.10.2025  [2025/42]
Applicant(s)For all designated states
NIPPON SHEET GLASS COMPANY, LIMITED
5-27, Mita 3-chome
Minato-ku
Tokyo 108-6321 / JP
[2024/23]
Inventor(s)01 / WAKAMIYA, Takashi
Tokyo 108-6321 / JP
02 / KATAGIRI, Shinya
Tokyo 108-6321 / JP
03 / MIKAMI, Shinji
Tokyo 108-6321 / JP
 [2024/23]
Representative(s)Cabinet Beau de Loménie
103, rue de Grenelle
75340 Paris Cedex 07 / FR
[N/P]
Former [2024/23]Cabinet Beau de Loménie
158, rue de l'Université
75340 Paris Cedex 07 / FR
Application number, filing date22849183.305.07.2022
[2024/23]
WO2022JP26772
Priority number, dateJP2021012266727.07.2021         Original published format: JP 2021122667
[2024/23]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2023008118
Date:02.02.2023
Language:JA
[2023/05]
Type: A1 Application with search report 
No.:EP4378902
Date:05.06.2024
Language:EN
[2024/23]
Search report(s)International search report - published on:JP02.02.2023
(Supplementary) European search report - dispatched on:EP17.09.2025
ClassificationIPC:C03B37/005, C09C1/00
[2025/42]
CPC:
C09C1/0015 (EP); C09C1/0078 (US); C09C1/0021 (EP);
C01P2004/20 (EP); C01P2004/51 (EP,US); C01P2004/54 (EP);
C01P2004/61 (EP,US); C01P2006/60 (EP); C03B37/005 (EP);
C09C2200/102 (EP); C09C2200/1054 (EP); C09C2200/1087 (EP) (-)
Former IPC [2024/23]C03B37/005, C09C1/62
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/23]
TitleGerman:PLÄTTCHENFÖRMIGE PARTIKEL UND BRILLANTPIGMENT[2024/23]
English:FLAKY PARTICLES AND BRILLIANT PIGMENT[2024/23]
French:PARTICULES SOUS FORME DE FLOCONS, ET PIGMENT BRILLANT[2024/23]
Entry into regional phase27.02.2024Translation filed 
27.02.2024National basic fee paid 
27.02.2024Search fee paid 
27.02.2024Designation fee(s) paid 
27.02.2024Examination fee paid 
Examination procedure27.02.2024Examination requested  [2024/23]
Fees paidRenewal fee
09.05.2024Renewal fee patent year 03
11.06.2025Renewal fee patent year 04
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Documents cited:Search[X] US2010297045  (KAUPP GUENTER et al.) [X] 1-5 * paragraphs [0013] - [0104] * * table 2 * * figure 1 *
 [X] US8926746  (WAKAMIYA TAKASHI et al.) [X] 1-5 * examples 1-24 * * tables 1-18 * * pages 4-8 *
International search[A] JP2015534586  (エッカルト ゲゼルシャフト ミット ベシュレンクテル ハフツングEckart GmbH) [A] 1-5 * entire text, all drawings *
 [A] WO2007114442  (NIPPON SHEET GLASS CO LTD et al.) [A] 1-5 * entire text, all drawings *
 [A] JP2004169155  (MITSUI MINING & SMELTING CO et al.) [A] 1-5 * entire text, all drawings *
 [A] JP2005200734  (DOWA MINING CO et al.) [A] 1-5 * entire text, all drawings *
by applicantJP4652445
 JPS453541
 JPS4117148
 JP2001031421
 JP2001011340
   YUTAKA KURATA: "Physical Properties of Powder Particles with Illustrations", 30 June 2004, NGT CO.
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